ABB DS201 C20 AC30 Residual Current Circuit Breaker with Overcurrent Protection 1P+N 20A 6kA 30mA AC

The ABB DS201 C20 AC30 is a high-performance residual current circuit breaker with overcurrent protection (RCBO), engineered to provide comprehensive safety for electrical circuits. This device combines the functions of a miniature circuit breaker and a residual current device in a single compact unit, protecting against both overloads and short circuits, as well as earth fault currents. It is designed for 1P+N systems, ensuring reliable operation in residential and commercial environments.

Advantages

This RCBO offers a high level of safety by integrating multiple protection functions into one space-saving module. The device is built to high manufacturing standards, ensuring durability and consistent performance over time. Its design facilitates easy installation in standard distribution boards, while the 6kA breaking capacity provides robust protection against electrical faults. By detecting AC type leakage currents, it significantly reduces the risk of electrical hazards, providing peace of mind for both installers and end-users.

Suitable for

• Residential electrical installations
• Commercial building distribution boards
• Protection of final circuits against overloads and short circuits
• Earth fault protection in single-phase systems

When it may not be suitable

This device is specifically designed for AC type leakage currents and may not be suitable for circuits where DC components are present, such as those connected to certain types of frequency converters or advanced electronic equipment. It is intended for 1P+N systems and cannot be used in three-phase electrical installations.

Key specifications

• Rated current: 20A
• Breaking capacity: 6kA
• Sensitivity: 30mA
• Leakage current type: AC
• Poles: 1P+N
• Characteristic: C

How to use

The ABB DS201 C20 AC30 should be installed by a qualified electrician in accordance with local electrical regulations. It is mounted onto a standard DIN rail within a distribution enclosure. Ensure that the supply cables are correctly connected to the input terminals and that the load is connected to the output terminals. After installation, the device should be tested using the integrated test button to verify the correct operation of the residual current protection mechanism.

What to consider before purchase

• Verify that the 20A rated current matches the requirements of your circuit.
• Ensure the installation environment is compatible with AC type leakage protection.
• Check that the available space in your distribution board is sufficient for the device dimensions.
• Confirm that the system voltage and frequency are within the operational limits of the device.

Usage recommendations

Regularly test the residual current protection function using the test button at least every six months to ensure the device remains in optimal working condition.